Finding the Fourth Proportional to 143,592.56, 215,388.90 and 64,614.53

Step by Step Solution

1. Step 1: Write the proportion equation
   143,592.56 : 215,388.90 = 64,614.53 : x
2. Step 2: Convert to fraction form
   143,592.56/215,388.90 = 64,614.53/x
3. Step 3: Cross multiply
   143,592.56x = 215,388.90 × 64,614.53
4. Step 4: Simplify right side
   143,592.56x = 13,917,252,540.72
5. Step 5: Solve for x
   x = 13,917,252,540.72/143,592.56
6. Step 6: Final answer
   x = 96,921.82